I just picked up a Tenpoint Turbo II package. I've shot a Horton for years, but needed the accudraw because of physical limitations. Yesterday, I started shooting the new bow and got weird grouping. Bow is shooting right about 2" at 20 yards and left about 3" at 30yds. I'm shooting Tenpoint aluminum shafts with ommni nock and 100 grain tips. Anybody?